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· 5 checks — Internal links, mixed-content guards, Open Graph previews, and structured data rolled into one auditable list.
SCORE
64
GRADE
D
FIX
2
REVIEW
2
PASS
1
INFO
0
Checks
5
1 PASS 2 REVIEW 2 FIX
F
Open Graph
Action
No Open Graph tags found — social sharing previews will be generic.
FIX
No Open Graph tags found — social sharing previews will be generic.
Warning::
No Open Graph meta tags found
Without og:title, og:description, and og:image, social media platforms will generate a generic preview when your page is shared.

Without og:title, og:description, and og:image, social media platforms will generate a generic preview when your page is shared.

Why this matters

Without Open Graph tags, social shares show a broken or empty preview card.

Learn more ▾

When someone shares your URL on Facebook, LinkedIn, Slack, iMessage, or any modern chat app, the preview comes from <meta property="og:*"> tags. Without them you get either no card or whatever fragment the social platform guesses — usually unflattering. The four core og: tags (title, description, image, url) cover what every major platform actually reads.

Source: Open Graph Protocol

Preview

arduino.cc

Arduino - Home

Open-source electronic prototyping platform enabling users to create interactive electronic objects.

Preview quality · Twitter/X A+ · 100/100
  • twitter:card — null
  • twitter:title — Arduino - Home
  • twitter:description — Open-source electronic prototyping platform enabling users to create interactive electronic objects.
  • twitter:image — https://www.datocms-assets.com/150482/1742470244-logo.png

ARDUINO.CC

Arduino - Home

Open-source electronic prototyping platform enabling users to create interactive electronic objects.

Preview quality · Facebook F · 10/100
  • og:title — falling back from <title>
  • og:description — falling back from <meta name=description>
  • og:image — Add og:image — preview card without an image looks broken
  • og:type — Add og:type — Recommended — tells Facebook the content category
  • og:url — Add og:url — Recommended — canonical URL for the share
  • og:site_name — Add og:site_name — Recommended — site-level brand line in the preview

  • No preview image for Facebook

    → Add og:image (recommended 1200×630)

Arduino - Home

arduino.cc

Preview quality · LinkedIn D · 55/100
  • og:title — falling back from <title>
  • og:description — falling back from <meta name=description>
  • og:image — Add og:image — preview card without an image looks broken

  • No preview image for LinkedIn

    → Add og:image (recommended 1200×627)

arduino.cc

Arduino - Home

Open-source electronic prototyping platform enabling users to create interactive electronic objects.

Preview quality · Slack A · 85/100
  • og:title — falling back from og:title
  • og:description — falling back from og:description
  • og:image — falling back from og:image

Social preview quality

Averaged across Twitter/X, Facebook, LinkedIn, and Slack.

D · 62/100
FieldTwitter/XFacebookLinkedInSlack
og:title⚠⚠⚠
og:description⚠⚠⚠
og:image⚠
og:type
og:url
og:site_name
twitter:card———
twitter:title———
twitter:description———
twitter:image———
F
Brand Presence
Action
Site-name consistency, favicon, social image, meta tags, schema, and contact signals
FIX

Brand Presence

Partial brand coverage — a few channels are missing brand signals.

F

36/100

Site name appears as

Page titleHome
og:site_name—
twitter:site—
Organization.name—

Consistent

Brand assets

Favicon

8/15

single size only

Social share image

10/20

twitter:image set; og:image missing

Meta completeness

8/20

Organization schema

0/15

Contact info discoverable

5/10

contact page

Findings

  • Missing brand name in: og:site_name, twitter:site, Organization.name
  • Add og:image — LinkedIn, Slack, Facebook ignore twitter:image
  • Single favicon only — add apple-touch-icon for iOS home-screen and high-DPI support
  • og:title missing
  • og:image missing
  • No Organization schema — Google can't render your logo in the knowledge panel
  • Only partial contact info discoverable — consider adding a dedicated contact page or mailto/tel link

How consistently your brand appears across channels — shared link previews, structured data, favicon, contact info.

C
Structured Data
Action
No structured data (JSON-LD) found.
REVIEW
No structured data (JSON-LD) found.
Info::
No structured data (JSON-LD) found
Adding structured data helps search engines understand your content and can enable rich results.

Adding structured data helps search engines understand your content and can enable rich results.

Why this matters

Without schema.org markup, your pages can't appear as rich results (stars, FAQs, recipes) in search.

Learn more ▾

Structured data is what unlocks rich snippets — review stars, FAQ accordions, recipe cards, breadcrumbs, etc. — that take up more SERP space and dramatically improve click-through. The schema.org vocabulary is well-documented and JSON-LD is the easiest format.

Source: Google Search Central / schema.org

No structured data found

Structured data (JSON-LD) helps search engines understand your content better. Adding it can improve your search result appearance.

Common types include:

  • WebSite — your site identity and search box
  • Organization — your company information
  • Article — blog posts and news articles
  • Product — e-commerce product pages
  • BreadcrumbList — navigation paths
Learn more at schema.org
A+
Mixed Content
No mixed content detected — all resources use HTTPS.
PASS
No mixed content detected — all resources use HTTPS.
Info::
No mixed content detected — all resources use HTTPS
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.

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